Abstract
Ionic liquids (ILs) of the third generation have become known to be adaptable substances with prospective applications in numerous scientific domains. They are attractive options for application in catalysis, separations, and energy storage due to their unique physicochemical characteristics, which include low volatility, excellent thermal stability, and variable polarity. The application of ILs as environmentally friendly solvents for chemical reactions, effective electrolytes for batteries, and new materials for the production of nanoparticles are all covered in this chapter. It also emphasizes its potential for environmentally friendly processes and environmental cleanup. In general, third generation integrated light bulbs represent a significant advancement in material science, offering remedies for present challenges in the chemical, energy, and environmental sectors.
Keywords: Catalysis, Energy storage, Green solvents, Ionic liquids.

